<?php
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namespace JVBase\managers;
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use JVBase\meta\MetaManager;
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use Exception;
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if (!defined('ABSPATH')) {
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exit; // Exit if accessed directly
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}
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/**
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* Form Manager Class
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* Mainly used for front-end forms.
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* Handles form rendering and processing using MetaManager
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*/
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class FormManager
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{
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protected array $forms;
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protected array $fields = [];
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protected string $turnstile_site_key = '';
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protected string $turnstile_secret_key = '';
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protected object $meta;
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protected object $cache;
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/**
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* Constructor
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*/
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public function __construct()
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{
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// Add form processing actions
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add_action('admin_post_nopriv_jvb_forms', [$this, 'processForm']);
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add_action('admin_post_jvb_forms', [$this, 'processForm']);
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// Add query var for form submission
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add_filter('query_vars', [$this, 'addQueryVars']);
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$this->forms = apply_filters('jvbForms', []);
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if (empty($this->forms)) {
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return;
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}
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$this->formContact = apply_filters('jvbFormContact', '');
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// Setup Turnstile
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$this->turnstile_site_key = JVB_CLOUDFLARE_SITE_KEY;
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$this->turnstile_secret_key = JVB_CLOUDFLARE_SECRET_KEY;
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$this->meta = new MetaManager(null, 'form');
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$this->cache = new CacheManager('forms', WEEK_IN_SECONDS);
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}
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/**
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* Add query vars for form submission
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* @param array $vars
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*
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* @return array
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*/
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public function addQueryVars(array $vars):array
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{
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$vars[] = 'jvb_submitted';
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$vars[] = 'jvb_form_error';
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return $vars;
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}
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/**
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* @param string $type
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*
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* @return false|string
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*/
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public function renderForm(string $type):string|false
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{
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if (!array_key_exists($type, $this->forms)) {
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return false;
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}
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$submitted = get_query_var('jvb_submitted', false);
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$error = get_query_var('jvb_form_error', false);
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ob_start();
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// Handle success state - return only success message
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if ($submitted) {
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$submission_id = sanitize_text_field($submitted);
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$submission_data = $this->cache->get('submission_' . $submission_id);
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echo '<div class="form-success">';
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echo '<h2>'.$this->forms[$type]['success_title']??'We got it'.'!</h2>';
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if (!empty($this->forms[$type]['success_message'])) {
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foreach ($this->forms[$type]['success_message'] as $message) {
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echo '<p>'.$message.'</p>';
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}
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}
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if ($submission_data) {
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echo '<div class="submission-summary">';
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echo '<h3>Your submission:</h3>';
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echo '<ul>';
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foreach ($submission_data as $key => $value) {
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if (!in_array($key, ['action', 'form_id', 'form_type', 'timestamp', '_wpnonce'])) {
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if (is_array($value)) {
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$value = implode(', ', $value);
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}
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echo '<li><strong>' . esc_html(ucfirst($key)) . ':</strong> ' . esc_html($value) . '</li>';
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}
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}
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echo '</ul>';
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echo '</div>';
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}
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echo ($this->formContact !== '') ? '<p>'.$this->formContact.'</p>' : '';
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echo '</div>';
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return ob_get_clean();
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}
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// Handle error state - show error message above form
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if ($error) {
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echo '<div class="form-error">';
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echo '<h2>Whoops!</h2>';
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echo '<p>Something went wrong there. Sorry about that.</p>';
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echo ($this->formContact !== '') ? '<p>'.$this->formContact.'</p>' : '';
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echo '</div>';
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}
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$id = uniqid($type);
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$this->renderFormStart($type, $id);
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$this->renderFields($type);
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$this->renderTurnstile();
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$this->renderFormEnd($type, $id);
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return ob_get_clean();
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}
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/**
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* @param string $type
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* @param string $id
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*
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* @return void
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*/
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protected function renderFormStart(string $type, string $id):void
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{
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?>
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<form id="<?= $id ?>" class="jvb-form" action="<?=esc_url(admin_url('admin-post.php'))?>" method="post">
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<?php
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wp_nonce_field('jvb_form_' . $id);
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}
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/**
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* @return void
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*/
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protected function renderFields(string $type): void
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{
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if (!array_key_exists($type, $this->forms)) {
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return;
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}
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if (empty($this->forms[$type]['fields'])) {
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return;
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}
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if (array_key_exists('sections', $this->forms[$type])) {
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$this->renderSections($type);
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return;
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} else {
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foreach ($this->forms[$type]['fields'] as $field_name => $field_config) {
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$this->meta->render('form', $field_name, $field_config, false, false);
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}
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}
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}
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protected function renderSections(string $type):void
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{
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echo '<div class="container">';
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$nav = '<nav class="tabs row start" role="tablist">';
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$i = 1;
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foreach ($this->forms[$type]['sections'] as $slug => $section) {
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$nav .= '<button type="button" class="tab';
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$ariaActive = 'false';
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if ($i === 1) {
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$nav .= ' active';
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$ariaActive = 'true';
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}
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$nav .= '" data-tab="'.$slug.'" role="tab" aria-selected="'.$ariaActive.'">
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<h2>'.$section.'</h2></button>';
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$i++;
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}
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echo $nav.'</nav>';
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$fields = $this->forms[$type]['fields'];
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$i = 0;
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foreach ($this->forms[$type]['sections'] as $slug => $section) {
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$class = ($i == 0) ? ' active' : '';
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?>
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<section id="<?= $slug ?>" class="tab-content<?=$class?>" data-tab="<?=$slug?>" role="tabpanel">
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<?php if (!empty($section['title'])) : ?>
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<h2><?= esc_html($section['title']); ?></h2>
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<?php endif; ?>
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<?php if (!empty($section['description'])) : ?>
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<p class="section-description">
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<?= wp_kses_post($section['description']); ?>
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</p>
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<?php endif; ?>
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<?php
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$sectionFields = array_filter($fields, function ($f) use ($slug) {
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return array_key_exists('section', $f) && $f['section'] == $slug;
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});
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foreach ($sectionFields as $field => $config) : ?>
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<?php
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$this->meta->render('form', $field, $config, false, false);
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?>
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<?php endforeach; ?>
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</section>
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<?php
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$i++;
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}
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}
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/**
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* @param string $type
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* @param string $id
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*
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* @return void
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*/
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protected function renderFormEnd(string $type, string $id):void
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{
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$submit = $this->forms[$type]['submit']??'Submit';
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// Add hidden fields
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?>
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<input type="hidden" name="action" value="jvb_forms">
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<input type="hidden" name="form_id" value="<?= $id ?>">
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<input type="hidden" name="form_type" value="<?=$type?>">
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<input type="hidden" name="timestamp" value="<?= time() ?>">
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<div class="form-actions">
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<button type="submit"><?= $submit ?></button>
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</div>
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</form>
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<?php
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}
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/**
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* Render Cloudflare Turnstile
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* @return void
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*/
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protected function renderTurnstile(): void
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{
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if (!jvbSiteUsesCloudflare()) {
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return;
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}
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$cloudflare = JVB()->connect('cloudflare');
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if ($cloudflare->isSetUp()) {
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$cloudflare->renderTurnstile();
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}
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}
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/**
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* Process form submission
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* @return void
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* @throws Exception
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*/
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public function processForm():void
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{
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// Verify nonce
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if (!isset($_POST['_wpnonce'])) {
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wp_redirect(home_url());
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exit;
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}
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$form_id = sanitize_text_field($_POST['form_id']);
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if (!wp_verify_nonce($_POST['_wpnonce'], 'jvb_form_' . $form_id)) {
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wp_redirect(home_url());
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exit;
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}
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$type = sanitize_text_field($_POST['form_type']);
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if (!array_key_exists($type, $this->forms)) {
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wp_redirect(home_url());
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}
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error_log('Form Post Data: '.print_r($_POST, true));
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// Verify Turnstile
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if (!$this->verifyTurnstile()) {
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$referer = wp_get_referer() ?: home_url($path);
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wp_redirect(add_query_arg('jvb_form_error', urlencode('Please complete the security check.'), $referer));
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exit;
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}
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// Check rate limits
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$ip_address = $_SERVER['REMOTE_ADDR'];
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$email = isset($_POST['email']) ? sanitize_email($_POST['email']) : '';
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$rate_check = $this->checkRateLimit($ip_address, $email);
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if ($rate_check !== true) {
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$error_message = $rate_check === 'hourly_limit' ?
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'Too many submissions in the last hour' :
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'Too many submissions in the last 24 hours';
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wp_redirect(add_query_arg('jvb_form_error', urlencode($error_message), wp_get_referer()));
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exit;
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}
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// Process form data
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$form_data = [];
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foreach ($this->forms[$type]??[] as $field_name => $field_config) {
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// Skip fields that weren't submitted (like hidden conditional fields)
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if (!isset($_POST[$field_name])) {
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continue;
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}
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$value = $_POST[$field_name];
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if (!$this->meta->validator->validate($value, $field_config)) {
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error_log('Validation unsuccessful');
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throw new Exception("Validation failed for {$field_name}");
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}
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$form_data[$field_name] = $this->meta->sanitizer->sanitize($value, $field_config);
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}
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// Send email
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$email_sent = $this->sendEmail($type, $form_data);
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if (!$email_sent) {
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$referer = wp_get_referer() ?: home_url();
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wp_redirect(add_query_arg('jvb_form_error', urlencode('Failed to send your message. Please try again later.'), $referer));
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exit;
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}
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$this->cache->set('submission_' . $form_id, $form_data, HOUR_IN_SECONDS);
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// Redirect back to form with success parameter
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$redirect = wp_get_referer() ?: home_url($path);
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wp_redirect(add_query_arg('jvb_submitted', $form_id, $redirect));
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exit;
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}
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/**
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* Send email with form data
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*/
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/**
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* @param string $type
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* @param array $form_data
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*
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* @return bool
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*/
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protected function sendEmail(string $type, array $form_data):bool
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{
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// Set up email data
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$to = get_bloginfo('admin_email');
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$subject = $this->forms[$type]['subject']??'New Form Entry';
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// Build email body
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$body = '<h2>Hey team!</h2>';
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$body .= '<p><strong>Date:</strong> ' . date_i18n(get_option('date_format') . ' ' . get_option('time_format')) . '</p>';
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$body .= '<div class="divider">';
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foreach ($form_data as $field_name => $value) {
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// Skip internal fields
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if (in_array($field_name, ['action', 'form_id', 'form_type', 'timestamp', '_wpnonce'])) {
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continue;
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}
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// Get field label from config
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$label = $this->forms[$type][$field_name]['label'] ?? $field_name;
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// Format value for display
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if (is_array($value)) {
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$value = implode(', ', $value);
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}
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$body .= '<p><strong>' . esc_html($label) . ':</strong> ' . nl2br(esc_html($value)) . '</p>';
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}
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// Add reply-to if email field exists
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if (isset($form_data['email'])) {
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$name = isset($form_data['name']) ? $form_data['name'] : '';
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$headers[] = 'Reply-To: ' . $name . ' <' . $form_data['email'] . '>';
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}
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// Send email
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return jvbMail($to, $subject, $body, $headers);
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}
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/**
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* Verify Cloudflare Turnstile token
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* @return bool
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*/
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protected function verifyTurnstile():bool
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{
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if (empty($_POST['cf-turnstile-response'])) {
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return false;
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}
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$cloudflare = JVB()->connect('cloudflare');
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if (!$cloudflare->isSetUp()){
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return true;
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}
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$token = $_POST['cf-turnstile-response'];
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$ip = $_SERVER['REMOTE_ADDR'];
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return $cloudflare->verifyTurnstile($token, $ip);
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}
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/**
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* Check rate limits for form submissions
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* @param string $ip_address
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* @param string $email
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*
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* @return string|true
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*/
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protected function checkRateLimit(string $ip_address, string $email):string|bool
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{
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// Check submissions in last hour
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$hour_limit = 3;
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$day_limit = 10;
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$submissions = get_transient('jvb_form_submissions_' . md5($ip_address));
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if (!$submissions) {
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$submissions = [
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'hour' => [],
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'day' => [],
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'email' => []
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];
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}
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// Clean old submissions
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$now = time();
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$submissions['hour'] = array_filter($submissions['hour'], function ($time) use ($now) {
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return ($now - $time) < 3600; // Last hour
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});
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$submissions['day'] = array_filter($submissions['day'], function ($time) use ($now) {
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return ($now - $time) < 86400; // Last 24 hours
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});
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$submissions['email'] = array_filter($submissions['email'], function ($data) use ($now) {
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return ($now - $data['time']) < 86400;
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});
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// Check limits
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if (count($submissions['hour']) >= $hour_limit) {
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return 'hourly_limit';
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}
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if (count($submissions['day']) >= $day_limit) {
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return 'daily_limit';
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}
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// Add new submission
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$submissions['hour'][] = $now;
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$submissions['day'][] = $now;
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if (!empty($email)) {
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$submissions['email'][] = [
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'email' => $email,
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'time' => $now
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];
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}
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// Store updated submissions
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set_transient('jvb_form_submissions_' . md5($ip_address), $submissions, DAY_IN_SECONDS);
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return true;
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}
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}
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